Coating apparatus



J. W. COSGROVE. COATING APPARATUS. APPLICATION FILED Nov. a. 1918.

Patented June 7, 1921 4 SHEETS-SHEET l- J. W. COSGROVE. COATINGAPPARATUS. APPLICATION FILED NOV,8,1918. I

Patented June 7, 1921.

4 SHEETSSHEET 2- Wh QM J. W. COSGROVE. COATING APPARATUS. APPLICATIONFILED NOV- 8, 191a.

L PM Z i m% g P Fig. 4

I. W. COSGROVE. COATING APPARATUS. APPLICATION mu; Nov a, 1915.

Patented June 7, 1921.

4 SHEETSSHEET 4.

- UNHTED STATES PATENT OFFICE.

JOHN W. COSG-ROVE, OF MEDIEORD, MASSACHUSETTS, ASSIGNOR 1'0 UNITED SHOEMACHINERY CORPORATION, OF PA'IERSON, NEW JERSEY, A. CORPORATION OF NEWJERSEY.

seosei.

COATING APPARATUS.

Patented June 7, 1921.

Application filed November 8, 1918. Serial No. 261,684.

To all whom it may concern:

Be it known that I, J OHN W. Cosenovn, ,a citizen of the United .States,residing at Medford, in the county of Middlesex and State ofMassachusetts, have invented cer-. tain Improvements in CoatingApparatus, of which the following description, in connection with theaccompanying drawings, is a specification, like reference characters onthe drawings indicating like parts in the several figures. I

This invention relates to apparatus for applying a fluid coating tovarious articles.

. cover plate,

It finds an important application in cementing parts of shoes, as thesoles, my preferred embodiment being arranged to cement or wetsimultaneously both sides of a sole.

An object of the invention is to supply effectively the coating fluid tothe lower of two applymg members, while permitting its movement withrespect to the companion applying member. In accomplishing this, I mounta fluid tank or receptacle pivotally between its extremities below anupper applying member, and arrange in the receptacle a lower applyingmember movable to take fluid therefrom and traveling with the receptacleinto or out of cooperation with the upper applying member. The lowerapplying member is shown in the form of a roll journaled near one end ofthe fluid tank and extending above the side walls, it being balanced bythe portion pf the tank on the opposite side of the pivotal support.Preferably, the portion of the tank at one side of the roll is coveredby a plate which may be movable to cooperate with said roll forcontrolling the fluid carried thereby. To avoid interference with thisadjustable as in filling the tank, the roll may extend less than thefull width of the tank, there being at its end an opening with a cover.I

It is often difficult, this being especially true of an applying membersupplled with by a receptacle delivering at,

. the delivery opening in the tank, with "the periphery of which roll aslide or scraper riphery of the roll.

cooperates to govern the quantity of fluid carriedby the roll to thework, the adjustment of the valve and slide to give the correct feed offluid may be hard to obtain.

If the valve permits less fluid to pass than does the slide, too light acoating may result. If, on the other hand, the valve is set to deliveran excess of fluid, this tends to receive fluid from the applying mem erand temporarily retain it in contact therewith. Between the applyinmember and auxiliary-receptacle is a disc arge opening with means forvarying the flow therefrom. With such an organization the valve from themain supply may be so opened that a quantity passes not less than is tobe applied to the work and the discharge from the auxiliary receptacleadjusted to give the desired application. Then, if the flow through thevalve is somewhat greater than necessary, the excess will be retainedwithin this receptacle. When a rotatable roll is employed as an applyingmember, the preferred location of the auxiliary receptacle is at thedown-going side of the roll, it having side walls contacting with theends of the roll, and a bottom wall a portion of which is arranged tomove toward and from the pe- Viscous coacting fluids of the character ofcement tend to draw out in strings between the work and the up-goingside of a rotatable applying member, and, gathering upon portions of theapparatus, as the frame, drip back upon the work. Another object of theinvention is to prevent this by means which will gather and effectivelydispose of the strings. This is accomplished by a member so situatedthat the strings are received upon its surface, this member cooperatingwith the applying member above the plane of. the work and being rotatedin the same direction to so deliver the accumulated strings to theapplying Lmember that they v are returned to the supply withoutanopportunity to fall upon the work. Herein is illustrated for thispurpose a roll driven from the applying member through an ec- ,-centricoperating pawls acting upon a ratchet wheel. This mechanism allows thestringereceiving roll to be positively driven in the desired dirctionand at a suitable speed. The string-receiving member is preferablyvariable in position so it may be most effectively located with regardto the surface of the applying member. It may, when in the form of aroll, be journaled in arms pivoted on the frame of the apparatus andarranged to be fixed in different angular positions.

Still another object of the invention is to provide an applying memberwhich will uniformly coat the work. In applying rolls havinglongitudinal series of depressions,

the coating fluid, especially when highly co hesive, as is cement, maybe more thickly laid upon the work at certain points, near the center ofthe roll for example, and inseparated areas a gradual stead of spreadingto the more thinly'coated areas, it tends rather to remain at the spotsat which it is applied, or even for the deposlted areas to draw awayfrom those about them. To prevent this, I connect each longitudinalseries of depressions by grooves between adjacent depressions, thesegrooves belng preferably al-ined to form continuous passages throughoutthe series. Through these the distribution of fluid may be equalzed, andafter the application of the coating to the work the connecting linesbetween the separated areas formed by the depres- SlOIlS. cause thelatter to draw together. The passages between the depressions are shownat the forward ortion, considered with reference to the direction ofrotation of the roll, since thereby, as the applying surface meets thework, each longitudinal series deposits a continuous line of the fluidwhich 1S effective in producing in the after-applied coalescence, aswork and roll separate in the advance of the work and the rotation ofthe roll. The referred construction of a roll having t ese separateddepressions with connecting passages, includes circumferential groovesabout the periphery of the roll, with longitudinal slots intersectingthe grooves and bars earned by the slots and projecting into thegrooves. Through the walls of the depressions adjacent to the bars areconnecting grooves, which may be furnished in part by a reduction of theedges of the bars.

Other objects of the invention will appear in connection with thefollowing description and the claims, illustrated by the accompanyingdrawings, in which,

Figure 1 is a side elevation of one embodiment of my invention, partsbeing broken away;

' Fig. 2 is an end elevation looking from.

portion of the perspective view of the Fig. 10 is a detail in rearelevation of the string-receiving roll and more closely associatedelements. 7

At 10 appears a base formed with an overhanging arm 12 and a shortvertical standard 14 situated at the opposite side of the base from thearm. Mounted to turn in the standard and base-portion of the arm aretrunnions 16 projecting from the side walls of a horizontally extendingtank or receptacle 18 for coating fluid, this tank having a portion 20carrying the trunnions and a wider portion 22. The tank vhas an inclinedbottom extending downwardly along the portions 20 and 22, and in thelatter portion journaled. in the side walls is a lower applying roll ormember 26. 'I he weight of the applying roll and containing portion 22of the tank is approximately balanced by the'portion 20 on the oppositeside of the trunnions. The shaft of this roll 1s connected by a'coupling28 permitting both vertical and horizontal movement to a shaft 80journaled in the frame and having fixed upon it a gear 32 meshing with-agear 68 fast on the shaft of an upper applying roll 66, to be laterdescribed, this gear, in turn, being rotated b a pinion 34 secured upona main driving s aft 36 rotatable in the arm portion of the frame.Carriedbythe shaft 36 are fast and loose pulleys 38 for cooperation witha belt connected to some suitable source of power. The top of theportion 20 of the tank is closed to prevent evaporation of the containedfluid by a plate t0, mounted to slide in ways so that it may not onlycover the tank but may also be utilized to control the coating of fluidupon' the periphery of the roll 26. To adjust this plate 40 so that thedistance of its inner edge from the roll may be varied, it has at itsouter end a depending arm 42 slotted to receive a screw 44 which rotatesin it and is threaded into the tank. When correctly positioned by thescrew, the inner. edge of the plate acts as a scraper, removing from theupgoing side of the roll 26 the excess of fluid to the tank. the roli 26ispreferably made trolling plate lOprevents convenient access the tank.

less in. length than the width of the tank portion 22, and at one end ofthe roll there is an openinginto the tank closed by a removable coverplate 46. Through this opening the coating fluid may be introduced intothe tank when necessary; Below the supply opening in the vertical wallof the tank portion 22 is an opening through which the contents of thetank may be drawn, this being provided with a cover plate 48. Supportedon the sides of the tank adjacent to the top of the roll 26 andpreferably extending for substantially its full length is a table 50 onwhich the .work may be placed by the operator for delivery to thecoating instrumentalities. The work, after being operated upon, isreceived upon a grating 52 mounted upon," the extremity of the tank andhaving beneath it an incline 54, which serves to return any cement whichmay drip from the work through the grating back to The tank 18 with theroll 26 is yieldably held in different vertical positions by a headedrod 56 extending downwardly through an opening in a lug 58 upon the endof the tank. The rod is supported by a hand wheel 60 through which it isthreaded, and is retained in its adjusted position by a lock nut 62. Aspring 64 surrounds the rod between the nut and tank lug, forcing saidlu upwardly against the head of the rod.

Vith the lower applying member coiiperates the upper applying member orroll 66 journaled in the arm 12 of the frame with its shaft carrying thegear 68. The gearing 32, 34 and 68 rotates the applying rolls inopposite directions, as is indicated by the arrows in Fig. 1 of thedrawings, so that the work inserted between them is carried from thetable 50 to the grating 52. The upper surface of the arm 12 is finishedto receive a. fluid tank or receptacle 7 0 having slotted lugs at thebottom which are enaged by opposite pivoted securing screws 2. The tank70 is closed at its top by a cover 74. It delivers to the upper side ofthe roll 66 through an opening controlled by a valve 76. The amount offluid carried to the work upon the down-going side of the roll isgoverned by a slide 78 (Fig. 3), movable in ways in the top of the arm12 and fixed in position by screws 80 extend ing into the arm throughelongated openings. At the opposite side of the roll is a slide 82similarly mounted and acting to prevent the flow of fluid from the tankover the roll in this direction. The adjusting screws for both'slidesare mounted wholly beneath the tank 70 so that they are accessible onlywhen this is removed, this arrangement avoiding needless tampering withthe adjustments by unskilled operators. Contacting with each end of theroll 66 at its upper side directly beneath the tank is a slide 84,extending for nearly the entire distance between the adjacent edges ofthe peripheral slides and having an extension 86 lying along the edge ofthe slide 82. Threaded through a portion of the frame adjacent to eachof the slides 84 is a screw 88 having a reduced cylindrical tip enteringa socket in the corresponding slide and fixed in the position to whichit may be turned by a nut 90. By these screws the slides may be forcedfirmly against the ends of the roll to make tight joints and preventleakage. It is difiicult to so form the parts as to prevent the escapeof the fluid from the top of the roll through the passages in dicated at92 between the extensions 86 of the end slides and the edges of theslide 82. To obviate this difiiculty, a movable packing member extendsacross each passage (Fig. 5), it preferably consisting of a block 94mounted in a recess 96 in the slide 82. Its outer end is forced againstthe inner side of the slide extension by a spring 98 surrounding aprojection from the block and being "seated in a bore in the slide 82.These members 94, regardless of the relation between the oppositeportions of the cooperating slides, effectively close the passagebetween them against the fiow of fluid.

If the valve 76 allows more fluid to flow from the tank 70 than can passthe slide 7 8 when the latter is set to leave upon the roll 66 a layerof the proper thickness, the excess accumulating on the top of the rollwill find its way beneath the slide 82. It will then run down theup-going side of the roll and falling upon the work will cause it to beunevenly coated on its upper face. To remedy this, I provide anauxiliary receptacle 100 to receive temporarily any such excess andcontrol the passage of the coating upon the roll to the work. Thereceptacle 100 is. shown as secured by upwardly extending arms 102, 102to the under side of'the outer extremity of the slide 78. It has sidewalls 104, 104",(Fig. 4 projecting over the ends of the roll 66 at thefeed side and a curved or inclined bottom wall 106 which reaches nearlyto the periphery of the roll. At the inner end of the side walls arevertical ways 108, 108 to receive packing strips 110, 110 which may beof felt. At the bottom of each way behind the packing strip is a backingplate 112, with Y which contacts a screw 114 threaded through the wall104 and operating to press its strip 110 into such contact with the endof the roll that fluid con tained in the tank 100 cannot pass in thisdirection. In a way 116 at the inner edge of the bottom 106 of the tankis a strip 118 which also may be of felt and have angular end portions120 overlying beveled ends 122 of the roll '66. This strip also has abacking plate 124 against which press screws 126. By these screws theopening between the bottom of the tank and the periphery of the. upperapplying roll may be varied to determine the thickness of the film ofcoating fluid upon the roll. Screws 128 are threaded through the tankwalls for contact with the portions 120 of the strip 118 to enable sucha pressure to be applied to them that they will act with the strips 110to close the space between the side walls of the tank and the ends ofthe applying roll.

Both applying rolls are preferably pocketed or supplied with depressions130 (Figs. 6 to 9) arranged in series both longitudinally andcircumferentially of the rolls to re-- ceive the coating fluid andtransfer it to the work, and to render the coating applied by the rollsas nearly as possible uniformly continuous, the depressions of eachlongitudinal series are cross-connected by alined grooves 132. Theseextend through the circumferential walls of the depressions to furnishcontinuous passages, preferably in proximity to, their forwardlongitudinal walls, as the rolls rotate. As each longitudinal series ofdepressions comes into contact with the work, the coating fluid is firstcontinuously applied along the line of the grooves, the pressure as thedepressions advance over the work tending to force the fluid through thegrooves from depression to depression so that the amount in eachdepression in the entire series will be substantially equal. The joiningbv the lines of fluid of the greater areas or spots laid upon the workby the depressions also promotes the coalescence of the latter,resulting in a .more continuous coating. .In forming the depressions inthe rolls there may first be made circumferential grooves, as bymilling, leaving equally spaced circumferential walls 134 having theirsides beveled. Then slots are cut parallel to the axis of the rollsmore-deeply than the grooves, and in these are fixed bars 1336 givingprojecting longitudinal walls 138. To produce the longitudinal groovesor passages 132, the circumferential grooves are finally milled through,and since the material of the bars 136-must, to permit them to beconveniently handled, be as a whole thicker than it is desired the walls138 shall be, this milling is caused to remove a portion from one sideof each bar, thus furnishing a portion of the'adjacen longitudinalpassage.

s the work emerges from the rolls, the coating fluid, if viscous, willbe drawn between it and the rising periphery of the roll '66 in strings,these as they are elongated breaking and snapping back toward the rollwhere they are liable to gather upon the frame arm 12. These, accumula'ting', fall back upon the work and give an uneven coating. 0dispose of'these strings, I mount above the grating 52 a stringreceiving D member furnished by a roll 140 journaled in contact with theapplying roll so it may not,

take the coating fluid fromor be driven by said applying roll. The roll140 is rotated at the desired speed, this being preferably less than theperipheral travel of the applying roll and in the same direction, froman eccentric 148 secured upon the applying roll shaft. Cooperating withthe eccentric is an arm 150 guided'by the journal of the roll 140 andhaving pivoted on it pawls 152, two of these being shown, one arrangedto push and the other to pull the teeth of a ratchet wheel 154 fast onthe shaft of the receiving roll. A spring 156 connects the pawls to drawthem into engagement with the ratchet teeth. The throw of the eccentricand the engagement of the ends of the pawls with the ratchet teeth aresuch that the receiving roll is rotated in the direction and at thespeed sought. As the strings breaking fly back toward the applying roll.they are caught by the roll 140 and are carried upwardly into thedepression between it and the applying roll, from which they are removedby the periphery of the latter. Since they are carried at once to thetop of the roll and into this depression, rather than beneath it andinto a channel open at the bottom, they have no opportunity to drip fromthe receiving roll itself before being carried back to the source offluid supply by the applying roll. 7

In using the apparatus, the soles, if this is the work to be coated, arelaid one by'one upon the table 50 and their ends introduced between theapplying rolls 26 and 66. They are caught by and carried through theseand delivered upon the grating 52, the upper and lower sidesrespectively receiving a coating from the corresponding rolls. Thethickness of the coating carried up by the depressions in the roll 26 isdetermined by the. setting of the plate 40. That of the upper roll isgoverned by the position of the strip 118 of the auxiliary tank. Thevalve 76 of the main supply tank is so set that not less than therequisite amount of the coating fluid will flow therefrom upon the topof the roll. If this amount be exceeded, it will be carried by the rollinto the tank 100 and there retained arms 142 which are pivoted uponbrackets this excess for a considerable period, so that no attentionneed be given to it by the operator other than to occasionally empty it,as at the end of a working period.

I-Iaving described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is 1. In a coatingapparatus, an upper applying member, a receptacle pivoted between itsextremities to move toward and from the upper applying member, and anapplying member journaled in the receptacle beneath the upper applyingmember.

2. In a coating apparatus, an upper ap plying member, a receptaclepivoted be tween its extremities to move toward and from the upperapplying member, and an applying member journaled in. the receptaclenear one extremity and being balanced by the portion of the receptacleon the opposite side of its pivots.

3. In a coating apparatus, supports, a tank pivoted upon the supportsand extending in opposite directions therefrom and having a bottom wallinclined from one extremity to the other, and an applying roll journaled in the side walls of the tank near the-lowest portion of theinclined wall and extending above the side walls.

4. In a coating apparatus, a tank for fluid, an applying roll journaledacross one extremity of the tank and extending for less than the fullwidth thereof, a cover plate for the extremity of the tank opposite theroll, and a removable cover for the tank at the end of the roll. I

5. In a coating apparatus, a tank for fluid, an applying roll journaledacross one extremity of the tank and extending for less than theffullwidth thereof, a cover plate for the extremity of the tank opposite theroll, said cover plate cooperatin with the roll and being movable towardand from the same to control the fluid thereon, and a removable coverfor the tank at the end of the roll.

6. In a coating apparatus, a tank provided with a main portion and anextension therefrom of less width than the main portion, an applyingroll journaled in the main portion of the tank and extending less thanthe width thereof, there being an opening in the tank at the end of theroll, trunnions projecting from the tank extension at opposite sides,and supports in which the trunnions are pivoted.

7. In a coating apparatus, a tank provided with a main portion and anextension therefrom of less width than the main portion, an applyingroll journaled in the main portion of the tank and extending less thanthe width thereof, there being an opening in the tank at the end of theroll, trunnions projecting from the tank extension at opposite sides,supports in which the trunnions are pivoted, and a cover plate forthe'top of the extension movable toward and from member.

10. In a coating apparatus, an applying member, a receptacle arranged tosupply fluid thereto, and a receptacle arranged to receive fluid fromthe applying member and temporarily retain it in contact therewith.

11. In a coating apparatus, an applying member, a' receptacle arrangedto supply fluid thereto, an auxiliary receptacle cooperating with theapplying member, said auxiliary receptacle forming a discharge opening,and means for varying the discharge from the opening.

12. In a coating apparatus, an applying member, a receptacle arranged tosupply fluid thereto, a receptacle arranged to receive fluid from theapplying member and temporarily retain it in contact therewith,

' and means for varying the time of retention.

13. In a coating apparatus, an applying roll arranged for engagement atits lower side with the work, a tank delivering to the upper portion ofthe roll, and a tank'coeperating with the side of the roll.

14. In a coating apparatus, a rotatable applying roll arranged forengagement at its lower side with the work, a tank delivering to theupper portion of the roll, and a tank cooperating with the down-goingside of the roll.

15. In a coating apparatus, an applying roll, a tank delivering totheupper portion of the roll, and a tank cooperating with the side ofthe roll and having a bottom wall arranged to move toward and from theroll.

16. In a coating apparatus, the combination with an applying roll, of atank delivering to the upper portion of the roll, a receptacle situatedat one side of the roll and havin an opening into which the rollextends, side walls contacting with the ends of the roll, and a bottomwall cooperating with the applying surface of the roll.

17. In a coating apparatus, the combination withanv applyingroll, of areceptacle situated at one side of the roll and having an opening intowhich the roll extends, walls situated at the ends of the roll, andpacking strips interposed betweenthe side walls and the ends of theroll.

. plying "member fora coatingsubstance, said situated at one side of theroll and having an opening into which the roll extends, walls situatedat the ends of the roll, packing strips interposed between the. sidewalls and the ends of the roll, and a member movable between the bottomwall and the periphery of the roll.

19. In a coating apparatus, a rotatable-apmember tending to producestrings of the coating substance, and a string receiving memberrotatable in cooperation with the applying member, said string-receivingmem ber being maintained out of contact with the work.

20. In a coating apparatus, a rotatable applying member for a coatingsubstance, said member tending .to produce strings of the coatingsubstance, and a string-receiving member rotatable out of contact with,and above the plane .of the work about an axis parallel to that of theapplying member.

21. In a coating apparatus, a rotatable applying member for a coatingsubstance, said member tending to produce strings of the coatmgsubstance, and a string-receiving member cooperating with and arrangedto be varied in its position toward and from the applying member.

22. In a coating apparatus, a rotatable applying member for a coatingsubstance,

said member tending to produce strings ofthe coating substance, astring-receiving roll ournaled adjacent to the applying member, andmeans arranged to permit the space between the applying member andstring-receiving roll to be varied.

2.3. In a coating apparatus, a rotatable applymg member for a coatingsubstance, said member tending to produce strings of the coatlngsubstance, a string-receiving roll, pivoted arms in which the roll isjournaled,

and means for fixing the arms in different angular positions.

24. In a coating apparatus, a rotatable applying member for a coatingsubstance,

said member tending to produce strings of the coating substance, astring-receiving member, an eccentric rotatable with the applymgmember,a ratchet wheel carried by the string-receiving member, and a pawl movable by the eccentric and; contacting with the ratchet wheel.

25.1 In a coating apparatus, a rotatable applying member for a coatingsubstance, a Supporting shaft therefor, a string-receiving roll mountedwith its axis parallel to the applying roll, and means carried by theshaft of the applying roll for rotating the stringreceivlng roll.

26. In a coating apparatus, a rotatable applying member for a coatingsubstance, a

supporting shaft therefor, a string-receiving roll mounted with its axisparallel to the pp y g roll; a driving m mber fixed to the applying-rollshaft, an arm recipro' cated by the driving .memben, operating pawlscarried by the arm, and a ratchet wheel mounted with thestring-receiving roll depressions to receive a coating substance,

there being a continuous passage connecting the depressions of a series.

29. In a coating apparatus, a rotatable applying roll provided with aseries of depressions extending longitudinally of the roll, there beingpassages connecting adjacent depressions near their forward portion. 30.In a coating apparatus, an applying roll provided with circumferentialgrooves and longitudinal slots intersecting the grooves, and barscarried by the slots and projecting into the grooves, there being roovesdividing the walls between circumierential grooves adjacent to the bars.

31. Ina coating apparatus, an applying roll provided withcircumferential grooves and longitudinal slots intersecting the grooves,and bars carried by the slotsand projecting into the grooves, one edgeof each bar being reduced and there being adjacent to these reducedportions grooves through the walls between the circumferential grooves.

32. In a coating apparatus, a fluid receptacle having a deliveryopening, a roll rotatable at the delivery opening, amovable membercooperating with the roll to control the fluid and tending to form apassage through which fluid may flow, and a yieldable member extendinginto the passage.

33. In a coating apparatus, 'a fluid receptacle having a deliveryopening, a roll rotatable at the delivery opening, a movable membercooperating with the roll to control the fluid and tending to form apassage through which fluid may flow, there being a recess adjacent tothe passage, a block situated in the recess and extending into thepassage, and a spring between the end of the recess and the block.

34. In a coating apparatus, a frame, a fluid receptacle carried thereonand having a delivery opening, a roll rotatable in the frame at thedelivery opening, a plurality of movable members cooperating with theroll to control the fluid flow and which may form in their movement apassage through which fluid may escape, and a packing member projectinginto .the passage.

35. In a coating apparatus, a frame, a fluid receptacle carried thereonand having a de ivery pen g, a .r ll rotatable in the 130.

frame at the delivery opening, a plurality of movable memberscooperating with the roll to control the fluid flow and which may formin their movement a passage through which fluid may escape, one of saidmembers I being provided with a recess, a block mounted in the recess,and a spring arranged to force the block into the passage into contactwith another controlling member.

36. In a coating apparatus, a frame, a fluid tank carried thereon andhaving a delivery opening, a roll rotatable in the frame at the deliveryopening, a slide cooperating with the periphery of the roll and havin a5 recess at one extremity, a movable mem er closing the opening at theend of the roll between the tank and frame, and a yieldable blockmounted in the slide-recess and contacting with the movable member.

37. In a coating apparatus, a rotatable applying member for a coatingsubstance, said member tending to produce strings of the coatingsubstance, and a string-receiving member rotatable above the plane ofthework in' contact with and in the same direction as the applying member.

In testimony whereof I have signed my name to this specification.

JOHN W. COSGROVE.

